The solution to your problem is as follows:
Since the equation of a line is:
y = mx + b; where m=slope, and b=y-intercept.
Therefore, the y-intercept of the line is -2.
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Answer:
4
Step-by-step explanation:
4 times itself equals 16.
Answer:
Step-by-step explanation:
Firstly, find the total amount of pens
5 + 10 + 20 = 35, Total of 35 pens
White pens: 10/35
Not a red pen: 20 + 10= 30, 30/35
Calculate these to a percentage:
White- 10/35: 28.57%
Not a red pen- 30/35: 85.71%
Answer:
P = 72 J
Step-by-step explanation:
Given that,
Charges, ![q_1=q_2=2\times 10^{-5}\ C](https://tex.z-dn.net/?f=q_1%3Dq_2%3D2%5Ctimes%2010%5E%7B-5%7D%5C%20C)
These charges are brought from infinity to a separation of 5 cm.
We need to find the increase in the electrical potential energy in the process. The formula for the electric potential energy is given by :
![P=k\dfrac{q_1q_2}{r}\\\\P=9\times 10^9\times \dfrac{(2\times 10^{-5})^2}{0.05}\\\\P=72\ J](https://tex.z-dn.net/?f=P%3Dk%5Cdfrac%7Bq_1q_2%7D%7Br%7D%5C%5C%5C%5CP%3D9%5Ctimes%2010%5E9%5Ctimes%20%5Cdfrac%7B%282%5Ctimes%2010%5E%7B-5%7D%29%5E2%7D%7B0.05%7D%5C%5C%5C%5CP%3D72%5C%20J)
So, the required electric potential energy is 72 J.